Executrix of abraham s



(No Model.

A. S. KISSELL, Decd.

M. A. KISSELL', Executrix.

AUTOMATIC ELECTRIC SWITCH.

Patented May 6, 1890.

UNITED STATES.

PATENT OFFICE.

MARY A. KISSELL, OF CHICAGO, ILLINOIS, EXECUTRIX OF ABRAHAM S. KISSELL, DECEASED.

AUTOMATIC ELECTRIC SWITCH.

SPECIFICATION forming part Of Letters Patent NO. 427,237, dated May 6, 1890.

Application filed September 2, 1889. Serial No. 322,688. (No model.)

To all whom it may concern:

Be it known that ABRAHAM S. KIssELL, late a citizen of the United States, residing at Chicago, in the county of Cook and ,State of Illinois, now deceased, did during his lifetime invent a certain new and useful Electric Cut-Out, of which the following is a specification.

This invention relates to an intermittinglyacting electromotor, comprising magnets joined in separate circuits, each of which includes a battery or other source of electricity, the armatures of the magnets being connected and their movement being adapted by suitable mechanical means to perform useful Work-as, for example, to close or open a draft damper or valve-a circuit making and breaking device-such as a thern1ostat-joined in both circuits and adapted to open and close the circuits automatically, and a cut-out comprising terminal contacts joined in the respective circuits, and an arm adapted to be moved by the oscillations of the armature from one terminal to the other, whereby when the motor has operated on the one side the circuit on that side is cut out at the close of the armature movement, and the other side is placed in condition to receive the current when the break in that circuit is closed.

As an illustration of a useful purpose to which the invention is particularly applicable, there is shown in the drawings, and will be described hereinafter, a thermostat, the needle of which by its vibrations under the influence of variations in the temperature is adapted to make and break the circuits, each of which includes the battery, a magnet, and one of the terminals, whereby the batterycurrent is directed through the one or the other of said magnets and attracts its armature, the movement of which is utilized, first, to perform the desired work, and, second, to operate the cut-out.

In the accompanying drawings, Figure l is a rear elevation of a pair of magnets and a thermostat electrically connected therewith, a part of the case of the latter being in section to show the'point of the vibrating needle. Fig. 2 is a front elevation of the magnets and cut-out. Fig. 3 is a side elevation, one magnet removed; and F1 4. is a plan view.

In the drawings, A A represent the mag nets, and B B the armatures thereof, which are connected by bars C C, pivotally mounted, and B is adapted to be connected with an operating-rod such as shown in Patent No. 5,871, and for this purpose is provided with an arm or extension C 1) is a supporting-plate composed of an insnlating material, and E E are springcontacts, whose outer ends are made fast to the vertical edges of the plate D, and whose inner ends are free and lap by each other, as shown in Fig. 4:. Said inner ends are pref= erably curved, as shown in Fig. 2.

F is an arm which is formed integrally with or is rigidly secured to the bar C or C, and the lower end of said arm has an angular extension f.

G is a binding-post, which is projected through the plate D, and on the inner end of said post, behind the plate, is pivotally mounted a rocking arm II, having a slot 72, into which projects the extension f of the arm F. The upper end of the rocking arm II bears an angular extension II, which is adapted to ride upon the curved ends of the spring-contacts E E.

I represents the case of the thermostat, and J 'the needle thereof, which vibrates between the points L M. L is joined by the wire N through the spools A, and M is joined by the wire 0 through the spools A with the contacts E E, respectively. The wires N and O branch near the magnet, and the branches are separately wound with the spools A A respectively, but connected to the contacts E E.

P represents the battery, and Q awire leading from one of the poles thereof to the hind ing-post G.

It is a wire leading from the opposite pole of the battery to the needle J.

Let it be supposed that the temperature of the room wherein the thermostat is located is normal, in which case the needle J will re main out of contact with L and M. If, now, the temperature rises, it will cause the neodle to deflect to touch L, and the circuit is completed. from the battery through the needle J, wire N, spools A, contact E, arm II, and wire Q, back to the battery. The vibration of the armature may be adapted by the usual means to actuate a damper-controlling device or valve, whereby the supply of heat may be cut off or a ventilator opened. The vibration of the armature in performing this effective work will have rocked the arm H, thus moving the angular extension H out of contact with E, and thus cutting off the current at the close of the armature movement, but at the same time the extension II will have been left upon contact E, thus closing the break at the magnet in the other circuit and leaving the device ready to receive the current on that side when the thermostat shall again act. The lowering of the temperature by the cutting off of the draft, closing of the valve, or opening of a ventilator, will immediately begin to aifect the needle of the thermostat, which will straighten out, thus breaking the contact at L. No electrical action will take place again until the temperature has fallen sufficiently to cause the needle to impinge upon M, when the second circuit will be established through wire 0, spools A, spring-contact E, arm H, and wire Q to the battery. The vibration of the armature will be adapted now to open the draft or valve or close the ventilator, thus producing in due course a rise in the temperature. As before, the oscillation of the armature will actuate the arm H, thus moving the angular extension H out of contact with E and bringing it to bear upon E again, thus cutting out the circuit last established at the close of the armature movement and putting the device in condition to receive the current, as in case first described, and the rise of the tempera ture will cause the needle J to leave the point M, thus breaking the circuit again at that point.

From the above description it is apparent that the electromotor is kept in readiness at all times to receive the current, either upon the one side or the other, as the thermostat may dictate or at the will of the operator, and that When the work is performed the cut-out breaks the circuit at the magnet, and thus the battery is brought into action only when work is to be performed, and is cut out when the work is completed, whereby the electrical energy is conserved.

What is claimed is 1. An intermittingly-acting motor comprising in combination magnets joined in separate electrical circuits, each including a source of electricity and an automatic circuit-closing device, armatures for said magnets connected to each other, and one of them having connections whereby its movements may be utilized for useful work, and a cut-out comprising contacts forming terminals of said circuits, and an arm adapted to be moved from one terminal to the other by the armature movement, whereby one circuit is broken at the close of said movement and a break in the other circuit is closed, substantially as described.

2. The combination of magnets joined in separate electrical circuits, each including a source of electricity and circuit-closing device, armatures for said magnets connected to each other, and one of them having connections whereby its movements maybe utilized, and a cut-out comprising spring-contacts forming terminals of said circuits, and an arm adapted to be moved from one of said contacts to the other by the armature move ment, whereby one circuit is broken at the close of said movement and a break in the other circuit is closed, substantially as described.

The combination of the magnets A A, joined in separate electrical circuits, their armatures B B, one of whichis provided with a connection whereby to utilize its movements, an arm F, rigidly connected with the armature, a pivoted arm lI, having an angul-a r extension 11 and adapted to be rocked with the armature, and spring-contacts E E, on which the extension II has a sliding bearing, substantially as and for the purpose described.

MARY A. KISSELL, Execu'lrfa; of Abrahmn S. ICz'sselZ.

\Vitnesses: I

FREDERICK C. GoonwIN, C. C. LIN'rHIcUM. 

